30 Specimens Surface Roughness Standards Set Surface Roughness Comparators with Ra0.05-12.5um for Surface Roughness Tester Surface Roughness Gauge

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Management number 220428206 Release Date 2026/05/03 List Price $86.00 Model Number 220428206
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  • This set contains standards for the six most important maching methods in the prevalent "AA" values.
  • These Surface Roughness is used to compare and determine the degree of the surface finish by comparision method and eye estimation or magnifying glass.
  • The surface rough contrast blocks is made of 45 super carbor steel except the GCr 15 which is using to plat lapping the sample block.
  • All 30 speciments are calibrated in u" AA( ArithmeticalAverage)and in the metric equivalents um Ra.

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